نتایج جستجو برای: ethylcellulose

تعداد نتایج: 270  

2006
V. Gallardo M. E. Morales J. López-Viota J. D. G. Durán M. A. Ruiz

Because of their large specific surface area, aqueous-based pseudolatex systems of ethylcellulose can absorb large amounts of drugs. In addition, the stability of polymeric particles in biological fluids delays the release of the drug as in controlled drug delivery systems. The aim of the present study was to characterize the rheological properties of latex particles as a measure of their collo...

2010
G Murtaza M Ahmad G Shahnaz

Purpose: To prepare, using non-solvent addition technique, diclofenac sodium-ethylcellulose microparticles with modified drug release properties. Methods: Microparticles were prepared by non-solvent addition phase separation method and characterized by micromeritics, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), x-ray diffraction (XRD), dissolution test and...

Journal: :iranian journal of pharmaceutical research 0
f atyabi r vahabzadeh r dinarvand

in the long-term management of ulcerative colitis patients, repeat dosing maybe required. since 5-asa is largely absorbed from the upper intestine, selective delivery of drugs into the colon may be regarded as a better method of drug delivery with fewer side effects and a higher efficacy. the aim of this study was to prepare and evaluate a double coated multiparticulate system for 5-asa deliver...

2015

The inactive ingredients contained in propranolol hydrochloride extended-release capsules, USP are ethylcellulose, gelatin, hypromellose, microcrystalline cellulose, sodium lauryl sulfate and titanium dioxide. In addition, propranolol hydrochloride extended-release capsules, USP 60 mg, 120 mg, and 160 mg capsules contain FD&C Blue No. 1. Propranolol hydrochloride extendedrelease capsules, USP a...

Journal: :Chemical & pharmaceutical bulletin 2004
Shin-ichi Kondo Yasushi Sasai Masato Kosaki Masayuki Kuzuya

Matrix-type composite particle for controlled drug release can readily be prepared through a totally dry process by simple anaerobic mechanical vibration of mechanoradical-containing ethylcellulose (EC) with theophylline powder due to occurrence of collision-induced radical-radical coupling reaction to form interparticle matrices, as well as the formation of interparticle network when solid-sta...

Journal: :Journal of the Society of Powder Technology, Japan 1989

Journal: :iranian journal of pharmaceutical research 0
kannaiyan sathish kumar department of chemical engineering, ssn college of engineering, kalavakkam 603 110, india. vasudevan jaikumar department of chemical engineering, ssn college of engineering, kalavakkam 603 110, india.

the present study is aimed at the overall improvement in the efficacy, reduced toxicity and enhancement of therapeutic index of cisplatin. nanocapsules of cisplatin containing ethylcellulose have been prepared using solvent evaporation technique under ambient conditions. the prepared nanocapsules were used for controlled drug release of anticancer agents with gold and iron oxide nanoparticles. ...

Kannaiyan Sathish Kumar, Vasudevan Jaikumar

The present study is aimed at the overall improvement in the efficacy, reduced toxicity and enhancement of therapeutic index of cisplatin. Nanocapsules of cisplatin containing ethylcellulose have been prepared using solvent evaporation technique under ambient conditions. The prepared nanocapsules were used for controlled drug release of anticancer agents with gold and iron oxide nanoparticles. ...

2012
Zhuo Wang Jason Folkenroth Weijun Zhou Yongwen Zhang Xiuqin Shi

ETHOCEL ethylcellulose polymers from Dow Chemical provide an alternative material to tri-acetyl cellulose (TAC) for LCD retardation films to increase viewing angle and contrast through its unique birefringence optics, excellent optical transparency, and low haze. Moreover, a new ETHOCEL-based polymer system has recently been developed with new optical properties such as tunable birefringence an...

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